Electronic Circuits


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Here are some neat circuits you might want to try. The schematics and printed circuit board patterns are GIF's, and may show up different on some browsers. You might want to save the images (especially the PC board patterns) to your hard drive, load them into a photo editor (Photoshop, Paint Shop Pro, The GIMP, etc.) and adjust the size before you transfer the pattern to a board. Printed circuit board patterns are available possible. This page is always under construction and there will be new additions from time to time. Some of these circuits were designed by me, most are not. Whenever possible I have tried to credit the author of a circuit but since many of these circuits are from my personal collection that I have gathered over a period of many years, this information is not always available.

You can rank circuits according to how much you like a circuit by clicking on the lightning bolt icons. These ranks can be based on how much you like a circuit, whether a circuit worked or didn't work for you, or how useful you found a circuit. Additionally you can add your own comments at the bottom of each circuit by filling out the form.

Circuit Catagories

Circuits are divided into categories as listed below.

Catagory Circuits
Auto 3
Computer 2
Light/Laser 21
Major Projects 2
Other 21
Power Supply 18
Sound/Radio 22
Telephone 8

Some circuits in this list have little astrisk (*) markers beside them which give a basic amount of information regarding whether the circuit has been designed, tested or modified by the webmaster.

Marker Description
* The circuit has not been tested by me. Therefore, I will offer no gaurantee that they will work.
* This circuit has been designed by me.
* This circuit was not designed by me, but was modified by me.

Most Popular Circuits

The most popular circuits of today, yesterday and all time can be found below.

When Circuit Views
Today
Sunday, April 28, 2024
12VDC To 120VAC Inverter35
Stepper Motor Controller29
Yesterday
Saturday, April 27, 2024
12VDC To 120VAC Inverter45
8 Watt Audio Amp30
Of All Time 12VDC To 120VAC Inverter1,531,800
FM Transmitter1,009,459

Auto

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Circuit Author Views Rank Comments Marker
Automatic Headlight Brightness Switch 227,666 61 *
Car Alarm Arming Horn Beep Canceller bob 137,249 6 *
Wireless Auto Tachometer 343,798 58

Computer

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Circuit Author Views Rank Comments Marker
Computer Controlled Frequency Counter/Logic Probe Richard van Wyk 160,536 29 *
Parallel (Printer) Port Interface 286,639 71

Light/Laser

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Circuit Author Views Rank Comments Marker
12VDC Fluorescent Lamp Driver 448,458 63 *
3 Channel Spectrum Analyzer 222,542 20
40W Fluorescent Lamp Inverter Bart Milnes 330,920 60 *
Adjustable Strobe Light 309,808 36
Black Light 281,547 29
Colour (Sound) Organ 291,484 36
Electronic Dice NEW! 189,972 10 *
Fantastic Atom Expander 203,725 25
Flash Slave Trigger 221,981 18 *
Infa-Red Remote Control 638,035 216 *
IR Remote Extender NEW! 133,479 3 *
IR Remote Jammer Carl 266,966 110 *
IR Remote Switch NEW! 158,419 9 *
LASER Transmitter/Receiver 417,342 92
LED Chaser 446,830 83 *
LED Metronome NEW! 100,200 3 *
LED Thermometer 207,519 22 *
Light/Dark Detector 306,911 90 *
Simple Colour Organ 138,242 11 *
Strobe Light 276,630 27 *
TRIAC Light Dimmer 553,693 55

Major Projects

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Circuit Author Views Rank Comments Marker
Computerize Your Room/Home 360,191 122 *
Electromagnetic Levitator NEW! 145,171 15 *

Other

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Circuit Author Views Rank Comments Marker
7 Segment LED Counter 923,179 214 *
AC Motor Speed Controller 392,327 29 *
Air Flow Detector 252,586 54 *
Digital Keypad Combination Lock 203,085 20
Low Voltage Alarm 230,059 58 *
Pine Racecar Victory Judge 103,445 1 *
Pulse Width Modulation DC Motor Control 655,814 94
Rain Detector 305,496 112 *
Simple Lie Detector 565,496 323
Simple Polarity Tester Dudley LeRoux 166,228 13 *
Simple Servo Controller 222,291 22 *
Simple Touch Switch NEW! 170,711 6 *
Simple Two Speed Contactor DC Motor Controller 206,049 21 *
Stepper Motor Controller 747,014 120 *
Time Delay Relay 556,495 88
Time Delay Relay II jawaharlal@excite.com 247,894 39 *
Touch Switch 290,580 51 *
Video Activated Relay 122,579 8 *
Video Stabilizer/MacroVision Removal Antti Paarlahti 182,139 10 *
Water Detector With Sump/Bilge Pump Controller 153,622 18 *
Wire Loop Alarm Alex Meaden 206,524 27 *

Power Supply

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Circuit Author Views Rank Comments Marker
12V To 24V DC-DC Converter NEW! 317,004 25 *
12VDC To 120VAC Inverter 1,531,800 691
6V to 12V Converter 528,502 121
Automatic 12V Lead Acid Battery Charger 938,205 248
Automatic Load Sensing Power Switch 168,234 16 *
Car Battery Charger 884,175 159 *
Dual Polarity Power Supply 372,122 84 *
Fixed Voltage Power Supply 312,114 52 *
High Current Power Supply 339,976 66 *
High Voltage High Current Power Supply 264,900 35 *
LASER Power Supply 297,104 28
Portable CD Player Adapter For Car 213,252 12 *
Power Supply 739,494 259 *
Solid State Tesla Coil NEW! 147,306 4
Solid State Tesla Coil/High Voltage Generator 445,405 51
Transformerless Power Supply 464,040 117 *
Voltage Inverter 340,063 51 *
Voltage Inverter II 204,046 19 *

Sound/Radio

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Circuit Author Views Rank Comments Marker
22 Watt Audio Amplifier 586,361 182
3 Watt FM Transmitter Rae XL Tkacik 336,310 83 *
50 Watt Amplifier 508,785 74
8 Note Tune Player 141,523 12 *
8 Watt Audio Amp 373,957 67 *
Aircraft Radio Communications Receiver 279,514 49 *
Crystal Radio 159,810 53 *
Digital Volume Control 339,434 47 *
Electronic Stethoscope 322,204 142 *
FET Audio Mixer 344,534 41
FM Transmitter 1,009,459 420
Guitar Fuzz Effect 248,584 54 *
Microphone Mixer Anatoly I. Shikhatov 251,527 26 *
Mono To Stereo Synthesizer oRbEq 134,720 18 *
One Tube Regenerative Radio NEW! 143,391 4 *
Op Amp Radio 389,925 80 *
Single Chip AM Radio NEW! 100,682 3 *
Single Chip FM Radio NEW! 173,605 1 *
Sound Level Meter 342,941 51 *
Stereo Tube Amplifier Weslee Kinsler 269,262 15 *
Tone Control 310,705 31
Transistor Organ 200,637 28

Telephone

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Circuit Author Views Rank Comments Marker
Cut Phone Line Detector 164,454 27 *
FM Telephone Bug 236,261 57
Phone Busy Indicator 214,826 24 *
Remote Telephone Ringer 119,141 3 *
Ringing Phone Light Flasher 219,343 35 *
Simple Phone Tap Derek Tombrello 384,499 98 *
Telephone Hold Button 129,961 10
Telephone Recorder 217,497 55 *


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All material marked as mine is property of Aaron Cake. You may, however, distribute it as much as you want, with or without credit to me. Just don't claim credit for it yourself, and it would be nice if you included a link back to my page. All other material is property of its authors.